Fecundity of Glyptothorax telchitta (Hamilton, 1822) from Tamor River, Nepal

Our Nature Pub Date : 2023-01-01 DOI:10.3126/on.v21i1.50831
Jwala Poudel, J. Shrestha, Dipak Rajbanshi, Jash Hang Limbu
{"title":"Fecundity of Glyptothorax telchitta (Hamilton, 1822) from Tamor River, Nepal","authors":"Jwala Poudel, J. Shrestha, Dipak Rajbanshi, Jash Hang Limbu","doi":"10.3126/on.v21i1.50831","DOIUrl":null,"url":null,"abstract":"The present study assesses the fecundity of Glyptothorax telchitta, a hill stream fish from the Tamor River, Nepal. A total of 60 specimens were collected from the Tamor River, with the help of local fishermen between March 2019 and February 2020. The absolute fecundity ranged from 3385 to 14298 eggs with the mean absolute fecundity of 9448.469 ± 607.783. The fish was found to be a medium fecund fish. Relative fecundity ranged from 151 to 529 eggs per gram body weight with mean relative fecundity of 371.38 ± 15.72. Fecundity showed significant positive correlations with ovary weight (r = 0.858) total length (r = 0.844) and total weight (r = 0.825). This indicated that fecundity dependent is mostly on ovary weight. Gonado-somatic index scored the peak values during March (15.15%) and May (15.01%), indicating the fish’s spawning period during the spring season. Egg sizes varied from 0.382 mm to 1.149 mm. The appearance of various sizes of eggs in a single ovary indicated that the fish was a fractional spawner. The ovaries occupied maximum space in the abdomen during the breeding season.","PeriodicalId":19905,"journal":{"name":"Our Nature","volume":"12 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Our Nature","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3126/on.v21i1.50831","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

The present study assesses the fecundity of Glyptothorax telchitta, a hill stream fish from the Tamor River, Nepal. A total of 60 specimens were collected from the Tamor River, with the help of local fishermen between March 2019 and February 2020. The absolute fecundity ranged from 3385 to 14298 eggs with the mean absolute fecundity of 9448.469 ± 607.783. The fish was found to be a medium fecund fish. Relative fecundity ranged from 151 to 529 eggs per gram body weight with mean relative fecundity of 371.38 ± 15.72. Fecundity showed significant positive correlations with ovary weight (r = 0.858) total length (r = 0.844) and total weight (r = 0.825). This indicated that fecundity dependent is mostly on ovary weight. Gonado-somatic index scored the peak values during March (15.15%) and May (15.01%), indicating the fish’s spawning period during the spring season. Egg sizes varied from 0.382 mm to 1.149 mm. The appearance of various sizes of eggs in a single ovary indicated that the fish was a fractional spawner. The ovaries occupied maximum space in the abdomen during the breeding season.
尼泊尔塔莫尔河的Glyptothorax telchitta (Hamilton, 1822)的繁殖力
本研究评估了一种来自尼泊尔塔莫尔河的山溪鱼Glyptothorax telchitta的繁殖力。在2019年3月至2020年2月期间,在当地渔民的帮助下,从塔莫尔河共收集了60个标本。绝对繁殖力范围为3385 ~ 14298枚,平均绝对繁殖力为9448.469±607.783枚。这条鱼被发现是一条中等繁殖力的鱼。相对繁殖力为151 ~ 529粒/克体重,平均相对繁殖力为371.38±15.72粒。繁殖力与卵巢重量(r = 0.858)、总长度(r = 0.844)、总重量(r = 0.825)呈极显著正相关。说明生殖力主要依赖于子房重量。性腺-体指数在3月(15.15%)和5月(15.01%)达到峰值,表明该鱼的产卵期为春季。卵的大小从0.382毫米到1.149毫米不等。单个子房中不同大小的卵的出现表明这种鱼是分体产卵者。在繁殖季节,卵巢在腹部占据最大的空间。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信